Motor-cycle.



L. HQ ALLEN.

MOTOR CYCLE. APPLICATION FILED JULY 14, 1909.

Patented June 21,1910.

gnueufoz L UTHgk/f ALLEN LUTHER H. ALLEN, 6F GRAVETTE, ARKANSAS.

Moron-ovens.

962,289 Specification of Letters Patent; P t nted June 21, into-w Application filed July 14, 1909. Serial No, 507,534.

To all whom it may concern: shiftable friction disk and its supporting Be it known that I, LUTHER H. ALLEN, shaft. a citizen of the United States, residing at Similar reference characters indicate cor- Gravette, in the county of Benton, State of responding parts throughout the several 60 Arkansas, have invented certain new and views in the drawings. useful Improvements in Motor-Cycles; and In th drawings th numeral 5 designates I do hereby declare the following to be a enerally a bicycle having the usual'mam ,construction'may be pro elled thereby an full, clear, and exact description of the inrame 6, the same being supportedby front vention, such as will enable others skilled and rear wheels 7 and 8, the latter forming fifi in the art to which it appertains to make and the drivin wh el and bein mount-edv be: use thesame. tween rear forks 9, of the main frame. The

The invention relates to a motor cycle and front wheel 7, is mounted in the front forkmore particularly to the class of motor at- 10, which latter has connection with suitable-@ tachmentsfor bicycles. steering handle bars 11, vfor guiding thej7 Theprimary Object of the invention is the front wheel and steering the bicycle in its provision of a motor attachment of this travel. character in which a bicycle of the ordinary giiitably mounted in the lower portion of the main frame is a motor or engine 12, the

that wili' enabiethe spec of said bicycle. to driving shaft 13 of which has fixed thereto 75 be increased: or decreased at the will of a a friction disk 14, the latter containing a vrider. centrally located depression .15, the purpose Another object of the invention is the pro- 1 of which will be hereinafter more full 'de-. 1 visionof a motor cycle in which the driving scribed. Projecting from one side 0 the wheel thereofis operated through the vmemain frame 6 of the bicycle are frontand diam of 'friction gears so that s ed of rear'supporting brackets 16, and iheach. of

travel'of the cycle may be increase or dewhich are rovided with split collars" l8,

creased at will by a rider and furthermore connected a cat the tubing of the main doing away with the necessity of pedaling frame 6, by fasteners 19, so that said the cycle for starting the motor as the latter brackets may be readily attached to and de- 85 is started by hand cranking the same. tached from the frame of the bicycle. The A further object of the invention is the rear bracket supports a substantially l..- provision of a motor cycle in which the shaped shaftcasing formed of separable upmotor thereof is capable of being readily depeer and lower sections 20' and 21 suit lo y tachcd from the frame of the cycle and atconnected and within this casing is suptached thereto thus making it possible to ported a short rotatable shaft 22, the latter, mount the motor and its drivin gearing on havin 'fixed at one end a beveled pinion 23, the frame of an ordinary bicyc e. enmeslri-ng-with a pinion 24;, fixed to the end A still further object of the invention is of a driven shaft 25, the latter journaled in the provision of a motor c, cle which is simthe casing and the front bracket in space ple in construction, reliab e and efiicient in relation to the friction disk l iof the motor. operation and inexpensive in the manufac- The driven shaft 25, has slidably keyed, ture. thereto a friction disk 26, which contacts With these and other objects in view, the with. the friction disk l l to im art rotary invention consists in the construction, commovement to the shaft 25, for, riving the 10 bination and arrangement of parts as will rear wheel 8 of the bicycle inthd manner as be hereinafter more fully described, illus- :will be hereinafter describedtrated in the accompanyingdrawings, which Secured to the shaft 22, is a sprocket disclose the preferred form of embodiment wheel 27, over which is trained a sprocket of the invention, and as pointed out in the chain 28, the latter also trained over a 105 claim hereunto appended. sprocket wheel 29 fixed to the hub of the rear In the drawings :l*igurc 1 is a side elewheel and through the medium of this ration of a motor cycle constructed in ac sprocket chain 28, the said rear wheel 8,,of cordam'e with the invention. Fig. 2 is a "the-bicycle is drivenby the moton' top plan \vicw thereof. l i 3 is a sectional Pivoted t0 the main frame is a bell crank no view on the line 3---3 of Fig. 2. Fig. i isa lever 30, to which latter is connected an opfragnwnlary sectional view through the crating rod 31,- and also connected to the bell 'by rst turning the pro ecting end crank lever is connected to a collar 33, Working 111 an annular groove contained in a hub of the fricby mani ulation of the of bicycle, 1 scribed herein is deemed" the preferable t pe. It is to be understood tion disk 26, and

operating rod 31 the sai iction disk 26, changes, Yariations and modifications may may be shifted longitudinally on the shaft e made, in the construction such as come 5 so as to change the point of contact of the p1 operly Within the scope of the appended said fiiction disk with the friction disk 14, claim Without departing from the spiritor sacr ficing any of the ventlon. What is claimed is The combination with a frame, of brackets the frame, a said brackets, said casing,"a bracket and said casing, enmeshing pinions connecting the shafts, a friction disk slidably keyed upon the secondnamed shaft, a

motor mounted in the bicycle frame and thereby varying the speed of travel of the bicycle.

In operation. the motor engine 12 is started 34, of the This causes which imwheeled bicycle detachably connected to drlvlngshaft l3, wlth split casing formed the friction disk 14, to rotate parts its rotary motion to the friction disk 26,.slidably keyed to the shaft 25, rotating the same and this shaft transmits its motion to the shaft 22, and through the medium of the sprocket chain 28, the rear Wh 'e bicycle. peed of the bicycle depends upon the contact of the friction disk 26, with the outer face of the fric-. tion disk 14, the speed being greatest near the periphery and gradually d the friction disk first named friction disk,

etween the first named shaft and the rear supporting Wheel of the bicycle frame, and means for changing the position of the first named disk With respect to the other.

the friction disk 26, t

In testimony whereof, I affix my sigma" with the friction disk 14, the motor 611 1118 ceases to lmpait n10- ture, in presence of two Witnesses. tion to the rear driving Wheel 8 of the LUTHER H. ALLEN. bio cle. Witnesses:

t is obvious that the motor and the fric- G. W. DUNBAR,

tion drive gearing may be readily and easily ROSEBORO.

a link 32 the latter being mounted upon the main frame of any style although the form shown and defriction disk fixed rlven connections 

